nidal hasan is charged with killing 13 people and wounding dozens more in the shooting spree at the texas army post nearly four years ago now. he is he also acting as his own lawyer which means he can cross-examine some of the people he is accused of shooting. today he did not do that. but he did interrupt a witness at one point. casey stegall was in the courtroom and is live in fort hood for us tonight. casey? the interruption really made no sense. frankly came at a time of the day when we heard some the most horrific testimony that we have heard in this trial so far when a sergeant was on the stand. a woman named sergeant marie a who supervised the medical building where that shooting happened. she testified hearing gunshots and hearing a woman screaming saying please don't, please don't. my baby, my baby. and then i heard shots. the prosecution asked her did you hear that voice again? her reply: no, sir. that is when hasan spoke up and said i object. would you please remind the sergeant she is under oath. it is odd because the sergeant had already been sworn in so they moved on. one co